Attachment for band-saws.



No. 724,433. PATBNTED A PR. 7, 1003.v

J. GATUDAL.

ATTACHMENT POB. BAND SAWS.

APPLICATION FILED 0012, 1902.

H0 MODEL.

Jazudz, 19mm TMW-S FIDCJ S v i UNTTED STATES PATENT FFICE.

JAMES CATUDAL, OF DALLAS, TEXAS.

ATTACHM ENT FOR BAN D-SAWS.

" SPECIFICATION forming part of Letters Patent No. 724,433, dated Aprilv, 190s.

Application filed October 2, 1902.

-band -saws for sawing wheels, pulleys, and

other circular forms.

The object of the present invention is to provide a simple andinexpensive attach ment for band-saws by means of which circulai` forms,such as wheels or pulleys, may be readily sawed of any desired sizewithout the necessity of scribing or otherwise marking on the wood priorto sawing the same and by means of which any number of objects oroddities may be successively sawed of the same diameter.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a perspective View of an attachmentconstructed in accordance with this invention and shown applied inoperative position on the table of a band sawing-machine, a portion ofthe band-saw being indicated in dotted lines. Fig. 2 is a. centralvertical longitudinal sectional view of the same. Fig. 3 is a plan view.

Like characters of reference designate corresponding parts in all thefigures of the drawings.

disposed at that side of the saw-table where the effective lead of theband-saw 6 operates, and the said guide-bars may be of any desiredlength, and the attachment may be constructsenti No. 125,699. (Nomodel.)

, ed of any desired material, as will be readily understood. The guidereceives a slide 7, which has its upper face Hush with the upper facesof thelongitudinal guide-bars and which is of a width to fit and slidelongitudinallyof the same, and the said slide is provided at its sideedges with outwardly-extending longitudinal'tongues to lit the grooves 5of the guide-bars. The slide is provided at a suitable distance from itsinner end with a transversely-disposed slot 8 for the reception of anadjustable pivot-post .9,projecting from the upper side of the slide andprovided with a shank of reduced diameter to fit in a recess 8 of theupper face of the slide. The lower face of the slide is also providedwith a recess 8b for the reception of the head of a bolt 11,

vprovided with an upper threaded portion for the reception of aclampingnut 11a. A washer is interposed between the head of the bolt andthe slide, and the said bolt which passes through a bore or openingofthe pivotpost receives a Washer, which is interposed between the upperend'of the pivot-post and the nut.

The block et, which constitutes the Work and which is to be sawed intocircular form, is first provided with a central opening for thereception of the pivotpost 9, the latter serving as a pivot on which thework carried by the slide may be turned when in engagement with theband-saw. The operator in practice advances the slide with his righthand, and when the said slide engages the adjustable stop 13,hereinafter described, is rotated with the left hand. The pivot-post 9,being adjustable, may be readily set at the required distance from thesaw to enable work of any desired diameter to be sawed. The inner end ofthe slide is provided with clearance-notches 12 to permit the escape ofthe sawdust.

The adjustable stop-or gage 13, which is provided with a taperedinnerend, is arranged in a suitable way formed by a pair of cleats orbars 14, which are arranged centrally of the base or body portion of theguide 1 at one end thereof. The bars or cleats 14 are provided withinclined or undercut inner edges to receive the side edges of the slide,which is beveled at opposite sides to fit the way. The slide is providedwith a central project- IOO ng portion at its inner end to engage theinner end of the adjustable stop, and the latter is secured at anydesired adjustment by means of a fastening device 16 mounted on the baseor body portion of the guide and arranged in a longitudinal slot 17 ofthe stop. In practice suitable graduations will be provided at theadjustable slot or gage for enabling the same to be accurately set andthe slide may also be provided at the transverse slot with graduationsto facilitate the adjustment of the pivot-post.

It will be seen that the attachment is exceedingly simple andinexpensive in construction, that it is adapted to be readily applied toand removed from the table of a band-saw, and that it is capable ofready adjustment to arrange it for sawing a pulley, wheel, or otherobject into a circular form of the desired diameter.

It will be understood that various changes in the form, proportion,size, and the'minor details of construction Within the scope of theappended claims may be resorted to Without departing from the spirit orsacriiicing any of the advantages of this invention.

What is claimed isl. A saw attachment for cutting circular forms,comprising a slide having a pivot for the work, a guide receiving theslide and arranged in a plane parallel with the saw, and an adjustablestop member independent of the slide and adapted to limit the movementthereof in one direction.

2. Asaw attachment for cutting circular the saw in a direction at rightangles to the movement of the slide.

3. A saw attachment for cutting circular forms comprising a slide tocarry the work and having means whereby the Work may be pivoted on it,and means for guiding the slide parallel with the saw, whereby the pivotmay be disposed abreast of the saw and the work brought in contacttherewith and turned to be sawedin circular form, substantially asdescribed.

4. A saw attachment for cutting circular forms, comprising a guidearranged in a plane parallel with the saw, a slide disposed in the guideand having a slot arranged at a right angle to the line of movement ofthe slide, a pivot-post adjustable in said slot, means for locking saidpost in adjusted position, and means for limiting the movement of theslide in one direction, substantially as specified.

5. A saw attachment for cutting circular forms comprising a guidedesigned to be detachably mounted on a saw-table and provided atopposite sides With longitudinal guide-bars, and having short guidesarranged at one'end of it at opposite sides of the center thereof, aslide mounted in the guide and engaging the guide-bars and provided witha pivot, and anl adjustable stop or gage mounted in the short guides andarranged to be engaged'by the slide, substantially as deL scribed.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

- JAMES CATUDAL. Witnesses:

G. L. NEAL, D. L. LINCECUM.

